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      1 /*
      2  * Copyright (c) 2013, Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #include "core/animation/AnimationEffect.h"
     32 #include "core/animation/KeyframeAnimationEffect.h"
     33 #include "core/animation/Timing.h"
     34 #include "core/platform/animation/TimingFunction.h"
     35 #include "public/platform/WebAnimation.h"
     36 
     37 namespace WebCore {
     38 
     39 typedef KeyframeAnimationEffect::PropertySpecificKeyframeVector KeyframeVector;
     40 
     41 class CompositorAnimationsImpl {
     42 private:
     43     struct CompositorTiming {
     44         bool reverse;
     45         bool alternate;
     46         double scaledDuration;
     47         double scaledTimeOffset;
     48         int adjustedIterationCount;
     49     };
     50 
     51     static bool convertTimingForCompositor(const Timing&, CompositorTiming& out);
     52 
     53     static void getAnimationOnCompositor(const Timing&, const KeyframeAnimationEffect&, Vector<OwnPtr<blink::WebAnimation> >& animations);
     54 
     55     static void addKeyframesToCurve(blink::WebAnimationCurve&, const KeyframeVector&, const TimingFunction&);
     56 
     57     friend class CompositorAnimations;
     58     friend class AnimationCompositorAnimationsTest;
     59 };
     60 
     61 } // WebCore
     62